Ta pfpb



l ntented h sh l fiddle outrun srnrns enrnur entree 1 :n'onnnn, or nnsnn, swrrznnnnnn, nssrenon no r. n. enter n. ct, or

BASEL, SWITZERLhND, A FIRM.

'JPZEHQTTII\TG PASTE AND PRUCESS FOR PREPARATION THEREOF.

lilo throwing. original application filed. September 19, 1924, serial No. 738,720, and in Germany @otober e23, that; Divided and. this application filed January 22, 1&26. Serial No. 833%.

This application is a divisional one of the application Ser. No. 738,720, filed Septemher 19, 1924:.

While glycerine, acetine (glycerine acetic I i acid ester) and other usual products used as solvents for organic dyestufis in many cases do not give any satisfactory results in the printing industry printing pastes made with ethylenechlorhydrin have shown to in a surprising manner that they yield excellent prints, which are purer and fuller then those produced by the additions lmown up to the present and according to the usual methods oil working.

lhe above mentioned solvent has the great advantage over ethylene-thiodiglycol employed tor similar purposes in the German Patents Nos 339,600 and 34l0,552, in that it possesses no disagreeable smell, it gives no purer and brighter shades, it is simpler to produce and easier to obtain Ethylenechlorhydrin has a greater power of dissolving niany'dyestufis'and when employed as addition to the printing pastes gs ensures a better penetration of the fibres than is the case with glycerine and acetine. This particular substance the employment of which in printin is novel permits the pro aration of aci -free printing pastes on which do not Weaken the fibres and the use otwhich is of cat importance particularly for the printing of weighted silk. Without the durability of the fibres being less-i ened, intensive, clear and full fined colours no can he obtained on weighted s1lk when using said addition to printing pastes, A turthen improvement consists in that with the help of the solvent mentioned, dyestufls insoluble in water can be dissolved and fixed on test on the various textile fibres by printing and steaming,

\ The methods of carrying out the process will be shown by the iollowing examples,

Example fa of water; To this are added of ethylenechlorhydrin,--

. otstarch-tragacanth thickening andotchromacetate 20 Be.

This mass is printed on weighted silk,

fixed by steaming and washed.- w

EcampZeH,

This is printed on unweighted silh, fined it by steaming and washed.

Ewamples HI and IV.

of zinc free -methylene blue is dissolved in of water and of acetic acid (80 per cent). To

this are added of ethylenechlorhydrin,

of starch-tragacanth thickening of tartaric acid 1:1 and of tannin 1:1.

UH- N) QDNDOO U 09 ceoeqeqe 4 g. of ehromazurol S cone. are dissolved in M the passage. through terter emetic washed and seeped.

Examples V and VI,

of spirit-soluble solid blue R R are dissolved by heating on the waiter hath, in

15 g, of ethylenechlorhydrin, 'llo this ere 7 added I 83 g, of sterch-tragacenth thickening.

This. is printed on chlorinated Wool (V) or Weight/ed silk (V1), fined by steaming and Washed.

Ewamples VII and VH2.

15 g. of

intense This is printed on cotton (VII) and steamed, passed through a tartar emetic loath end seeped. @r the same dye paste is printed on Weighted silk (VH1), fixed by steaming end Washed.

What ll claim is:

1.. A process for the preparation or printing astes from organic dyestufis, consisting in adding ethylenechlorhydrin to e dyestniif solution and a thickening.

2. As new products of menuinctur printing pestesconteining together with a dyestnfil endv e thickening, ethylenechlorhydrin es further ingredient lln Witness Whereoi ll here hereunto signed my name this 6th dny of Jennery, 1928.

' met/innit Winn e. I 

